| 计及复杂操作序列暂态稳定分析快速网络处理 |
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| 引用本文： | 卢卫星,倪以信,方明,陈寿孙.计及复杂操作序列暂态稳定分析快速网络处理[J].清华大学学报(自然科学版),1996(5). |
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| 作者姓名： | 卢卫星 倪以信 方明 陈寿孙 |
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| 作者单位： | 清华大学电机工程及应用电子技术系!北京100084 |
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| 摘 要： | 针对电力系统直接法暂态稳定分析的需要，提出了一种考虑复杂操作序列（如继电保护相继动作、切机、重合闸等）情况下，计算收缩到发电机内节点的导纳阵（简称收缩导纳阵）的快速计算方法。该法以系统阻抗阵为基础，首先形成故障前的收缩导纳阵，当系统网络结构发生变化时，只需作少量修正，就能形成相应的收缩导纳阵，有利于提高直接法暂态稳定分析计算的速度，具有重要的实际应用价值。
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| 关 键 词： | 电力系统 暂态稳定 收缩导纳阵 |
Fast method to calculate the reduced internal Y-matrix in direct transient stability analysis of power systems |
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| Lu Weixing,Ni Yixin,Fang Ming,Chen Shousun.Fast method to calculate the reduced internal Y-matrix in direct transient stability analysis of power systems[J].Journal of Tsinghua University(Science and Technology),1996(5). |
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| Authors: | Lu Weixing Ni Yixin Fang Ming Chen Shousun |
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| Abstract: | In order to meet the need of direct transient stability analysis of power systems , a fast method to calculate the reduced internal Y-matrix (i. e. only the generator internal buses are retained in the Y-matrix) is presented. During this method,the pre fault reduced internal Y-matrix is first formed3 when network configure is changed, based on the system impedance matrix few modifications are needed to obtain the relative reduced internal Y- matrix. The proposed method can speed up the direct transient stability analysis and the complex operation sequence (such as generator-shedding, auto reclosing, sequence operation of protective relay and so on) can be taken into account. |
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| Keywords: | power system transient stability reduced internal Y-matrix |
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